CN204465518U - A kind of smart antenna tuner - Google Patents
A kind of smart antenna tuner Download PDFInfo
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- CN204465518U CN204465518U CN201520164163.3U CN201520164163U CN204465518U CN 204465518 U CN204465518 U CN 204465518U CN 201520164163 U CN201520164163 U CN 201520164163U CN 204465518 U CN204465518 U CN 204465518U
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Abstract
The utility model discloses a kind of smart antenna tuner, by testing circuit, control circuit and match circuit composition, testing circuit comprises standing-wave ratio detection module, impedance detection module, phase detecting module, power detection module, frequency detection module and comparator, standing-wave ratio detection module, impedance detection module, phase detecting module, power detection module is connected respectively to the input of comparator, testing circuit is provided with radio-frequency connections terminal, radio-frequency connections connecting terminals receives power detection module input, power detection module output in testing circuit and comparator output terminal are connected respectively to control circuit input, vector impedance detection module is provided with in match circuit, matching network module and relay system module, relay system module output is connected to matching network module input, the output of control circuit is connected to vector impedance detection module input in match circuit.The utility model has that tuning period is shorter, versatility is stronger, uses convenient.
Description
Technical field
The utility model relates to short wave communication equipment applied technical field, particularly relates to a kind of smart antenna tuner.
Background technology
Known existing antenna tuner (hereinafter referred to as sky adjust) according to range of application can be divided into tailored version sky be in harmonious proportion universal sky adjust.Universal sky is adjusted a general point manual sky to be in harmonious proportion automatic sky and is adjusted, the electric capacity and inductance value size that need manually to regulate sky to adjust are adjusted in manual sky, be used for realizing mating between antenna with radio station, whole tuning process is made all to need hand fit's standing-wave meter, not only make tuned speed slow, and all will there are certain requirements for the qualification of user operation and experience tuning process, thus existing manual sky is adjusted use not very convenient, the instructions for use of modern people can not be met; The matching status needing to be detected antenna and radio station by the standing wave detection circuit of its inside is adjusted in automatic sky, then by Approach by inchmeal scheduling algorithm control relay, and then regulate sky to adjust inner capacitor and inductor, form π type or T-shaped matching network, realize mating between antenna with radio station, this automatic sky is adjusted also two shortcomings, the first is owing to performing successive approximation algorithm, and also to carry out standing-wave ratio detection in real time simultaneously, therefore tuning period is longer, general all in a few second, make the instructions for use that can not meet people; And to Approach by inchmeal scheduling algorithm control relay be passed through, the reason of algorithm may be there is, thus can cause the combination of some Frequency point place capacitor and inductor can avoid falling realization coupling required for numerical value, therefore can produce the dead point forever can not mated.
Utility model content
For deficiency of the prior art, the utility model provide a kind of there is highly versatile, intelligence degree is high, tuning period is short smart antenna tuner.
To achieve these goals, technical solution adopted in the utility model is:
A kind of smart antenna tuner, by testing circuit, control circuit and match circuit composition, testing circuit includes standing-wave ratio detection module, impedance detection module, phase detecting module, power detection module, frequency detection module and comparator, standing-wave ratio detects and module, impedance detection module, phase detecting module, power detection module is connected, standing-wave ratio detection module, impedance detection module, phase detecting module, power detection module is connected respectively to the input of comparator, testing circuit is provided with radio-frequency connections terminal, radio-frequency connections connecting terminals receives power detection module input, power detection module output in testing circuit and the output of comparator are connected respectively to the input of control circuit, are provided with vector impedance detection module in match circuit, matching network module and relay system module, relay system module output is connected to matching network module input, and the output of control circuit is connected to the vector impedance detection module input in match circuit.
Described control circuit is specially a micro-control unit.
The beneficial effects of the utility model: compared with prior art, vector impedance detection module is provided with in the utility model match circuit, tuning period is made all to be less than 20ms on the one hand, greatly reduce the operating time, on the other hand also can the impedance of automatic detection antenna port with frequency variation characteristics, then the control unit (FPGA) that sky is adjusted calculates the combination of the capacitor and inductor that each frequency place needs according to impedance operator optimization, realize mating between antenna with radio station; This technology can be coupled to the radio station of any model when in use, does not need to carry out exchanges data between radio station and can realize outside automatic tuning, highly versatile and intelligence degree high.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is control circuit schematic diagram of the present utility model;
Fig. 3 is π type matching network schematic diagram in match circuit of the present utility model;
Fig. 4 is matching network tuning process figure in match circuit of the present utility model.
Embodiment
As shown in Figure 1, a kind of smart antenna tuner, by testing circuit, control circuit and match circuit composition, testing circuit includes standing-wave ratio detection module, impedance detection module, phase detecting module, power detection module, frequency detection module and comparator, standing-wave ratio detects and module, impedance detection module, phase detecting module, power detection module is connected, standing-wave ratio detection module, impedance detection module, phase detecting module, power detection module is connected respectively to the input of comparator, testing circuit is provided with radio-frequency connections terminal, radio-frequency connections connecting terminals receives power detection module input, power detection module output in testing circuit and the output of comparator are connected respectively to the input of control circuit, are provided with vector impedance detection module in match circuit, matching network module and relay system module, relay system module output is connected to matching network module input, the output of control circuit is connected to the vector impedance detection module input in match circuit, and described control circuit is specially a micro-control unit.
Of the present utility model primarily of testing circuit, control circuit and match circuit composition, vector impedance detection module when wherein sky tunes to open machine in acquiescence match circuit is received on antenna, through about 30 seconds by antenna complex impedance with frequency change rule measure after, then result is stored in the micro-control unit (MCU of control system) in control circuit, the connection of vector impedance detection module and antenna subsequently disconnects, following antenna will be directly connected to the matching network module in matching network circuit, testing circuit starts normal work simultaneously, if the standing-wave ratio that standing-wave ratio detection module detects meets the requirements, then normally work, if the standing-wave ratio that standing-wave ratio detection module detects is undesirable, then send by comparator the standing-wave ratio testing result that standing-wave ratio detection module detects to control circuit, then a series of instruction is sent by control circuit, the relay among matching network module is controlled according to the algorithm approached gradually, make to finely tune near initial value capacitor and inductor, Real-Time Monitoring standing-wave ratio size simultaneously, until standing-wave ratio is qualified, relay keeps last state, the normal work of it levelling, is stored into the state of relay in micro-control unit simultaneously.
It normal workflow adjusted mainly is divided into three steps: whether testing circuit mainly detects has radiofrequency signal to input, determine the frequency of input signal simultaneously, then frequency information is sent in control circuit, testing circuit is primarily of standing-wave ratio detection module, impedance detection module, phase detecting module, power detection module, frequency detection module and comparator composition, whether power detection module effect detects to have radiofrequency signal to input, frequency detection module effect is the frequency detecting input radio frequency signal, micro-control unit is passed to by comparator, thus micro-control unit sends relay status data, also after tuning completing, store the parameter in matching network module according to the frequency of input signal simultaneously, phase detecting module effect is the phase place detecting resonance matching network input impedance, thus determine the off resonance state of network, for tuning system provides error signal, the effect of impedance detection module is detection tuning network input resistance is be greater than, be equal to or less than and require impedance, control circuit is passed to output error signal, the effect of standing-wave ratio detection module is the incident voltage and the reflected voltage that detect tuning network input, by the comparison to incident voltage and reflected voltage value, calculate voltage standing wave ratio, judge whether antenna automatic tuning system is in matching status for control circuit, the relay status data calculated are sent in match circuit by control circuit primary responsibility, match circuit, according to the data point reuse relay system of control circuit, realizes the impedance matching in antenna and radio station.
Fig. 2 is control circuit schematic diagram, and control circuit is made up of MCU and I/O drive circuit, in order to control more relay system, by 8255 expansion I/O mouths, then drives relay folding through four integrated Darlington transistors of UNL2003.
Match circuit of the present utility model is made up of vector impedance detection module, matching network module and relay system module, each Control in relay system module matching element, and the intelligent antenna tuner in the utility model adopts π type matching network module (as shown in Figure 3), π type matching network module is made up of net inductive L and 7 binary stepped network capacitance C2 of the network capacitance C1 of 8 binary stepped, 9 binary stepped.Tuning Principle as shown in Figure 4, main tuning district is the matching area of Г type matching network, Г type matching network is made up of C1 and L, C2 and sky line parallel play the effect of an impedance transformation, C2 can by the point transformation in the point outside Г type matching network matching area and secondary tuning district to main tuning district, realize coupling by Г type matching network again, thus reach the object of impedance matching.Therefore π type matching network impedance matching process is roughly divided into following two kinds:
(1) antenna impedance falls into main tuning district: increase L and make input impedance rise to C1 rotational circle, then increases C1 and makes impedance rotate to Z0.
(2) antenna impedance falls into the secondary tuning district of C2: be incorporated to C2 by impedance transformation to main tuning district, then complete precision tuning by L, C1.
The beneficial effects of the utility model: compared with prior art, vector impedance detection module is provided with in the utility model match circuit, tuning period is made all to be less than 20ms on the one hand, greatly reduce the operating time, on the other hand also can the impedance of automatic detection antenna port with frequency variation characteristics, then the control unit (FPGA) that sky is adjusted calculates the combination of the capacitor and inductor that each frequency place needs according to impedance operator optimization, realize mating between antenna with radio station; This technology can be coupled to the radio station of any model when in use, does not need to carry out exchanges data between radio station and can realize outside automatic tuning, highly versatile and intelligence degree high.
Claims (2)
1. a smart antenna tuner, by testing circuit, control circuit and match circuit composition, is characterized in that: testing circuit includes standing-wave ratio detection module, impedance detection module, phase detecting module, power detection module, frequency detection module and comparator, standing-wave ratio detects and module, impedance detection module, phase detecting module, power detection module is connected, standing-wave ratio detection module, impedance detection module, phase detecting module, power detection module is connected respectively to the input of comparator, testing circuit is provided with radio-frequency connections terminal, radio-frequency connections connecting terminals receives power detection module input, power detection module output in testing circuit and the output of comparator are connected respectively to the input of control circuit, are provided with vector impedance detection module in match circuit, matching network module and relay system module, relay system module output is connected to matching network module input, and the output of control circuit is connected to the vector impedance detection module input in match circuit.
2. a kind of smart antenna tuner as claimed in claim 1, is characterized in that: described control circuit is specially a micro-control unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520164163.3U CN204465518U (en) | 2015-03-23 | 2015-03-23 | A kind of smart antenna tuner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520164163.3U CN204465518U (en) | 2015-03-23 | 2015-03-23 | A kind of smart antenna tuner |
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| Publication Number | Publication Date |
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| CN204465518U true CN204465518U (en) | 2015-07-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520164163.3U Expired - Fee Related CN204465518U (en) | 2015-03-23 | 2015-03-23 | A kind of smart antenna tuner |
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| Country | Link |
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| CN (1) | CN204465518U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107947813A (en) * | 2017-12-29 | 2018-04-20 | 陕西烽火电子股份有限公司 | A kind of antenna tuner detects electrifying device |
| CN111049493A (en) * | 2019-11-20 | 2020-04-21 | 中国电子科技集团公司第三十研究所 | Vector sky tone fast tuning method |
| CN116405042A (en) * | 2023-05-31 | 2023-07-07 | 广州博远装备科技有限公司 | Automatic antenna tuning circuit and system |
-
2015
- 2015-03-23 CN CN201520164163.3U patent/CN204465518U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107947813A (en) * | 2017-12-29 | 2018-04-20 | 陕西烽火电子股份有限公司 | A kind of antenna tuner detects electrifying device |
| CN111049493A (en) * | 2019-11-20 | 2020-04-21 | 中国电子科技集团公司第三十研究所 | Vector sky tone fast tuning method |
| CN111049493B (en) * | 2019-11-20 | 2022-03-18 | 中国电子科技集团公司第三十研究所 | Vector sky tone fast tuning method |
| CN116405042A (en) * | 2023-05-31 | 2023-07-07 | 广州博远装备科技有限公司 | Automatic antenna tuning circuit and system |
| CN116405042B (en) * | 2023-05-31 | 2023-08-22 | 广州博远装备科技有限公司 | Automatic antenna tuning circuit and system |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150708 Termination date: 20210323 |